KOYO bearing installation disassembly steps

KOYO bearing installation or no quality, can affect the bearing accuracy, life and performance. Therefore, in the full study bearing, contains the following standards, including the following items bearing installation operation. First, clean the grease lubricated bearing bearings and related parts, a seal or dust cover don't have to wash the bilateral, ring bearing installation. Second, check the relevant parts of the size and finishing condition 3, installation method of bearing installation should be according to KOYO bearing structure, as the size of the pressure and the nature of the bearing parts, should be directly in the tight and torus is not through the rolling pressure, bearing installation commonly adopt the following methods: A. Pressure bearing inner ring and shaft tight fit, outer ring with KOYO bearing hole, is a relatively loose to cooperate, can according to the first axis bearing installation, then put the bearing and the bearing hole axis, when pressed on the bearing inner ring end face, soft pad assembly casing metal materials ( Copper or mild steel) Made of the inner diameter of the casing assembly should be larger than the diameter of a journal, diameter should be smaller than the bearing inner ring wall, in order to avoid pressure in a cage. Bearing outer ring and bearing hole tight fit, inner ring and the shaft for a loose fit, the bearing can be divided into bearing pore pressure, and then the assembly should be slightly smaller than casing diameter smaller in diameter. If the bearing ring and shaft and hole is a tight fit, install indoor ring and outer ring at the same time into the shaft and the pore pressure, casing assembly structure should be also responsible for the external and internal tension. B。 Heated by heating or KOYO bearings, bearing the use of thermal expansion will be a into an installation method closely. Installation method is a kind of common and energy saving. This method is in view of the interference of a large number of suitable bearing installation, bearing or separable bearing ring uniformly heated to 80 - before loading 100 ℃, then from oil to shaft as soon as possible for cooling after hot tanks to prevent the inner surface and shoulder fit is not tight, axial bearing after cooling is fastening. Tight fit bearing outer ring and light metal bearing, bearing hot heating equipment using method, can be avoided and surface wear. When heated to a certain distance from the gate at the bottom of the bearing of the fuel tank, should the child, or use the hook suspension bearing, bearing cannot be on the bottom, prevent impurities from entering the bearing or uneven heat sink, tank must have a thermometer, strictly control the oil temperature shall not exceed 100 ℃, in order to prevent the tempering effect, reduces the ferrule hardness. C。 The installation of the cone bearing cone bearing hole can be directly installed in the taper of the magazine, or load can be used to measure the radial clearance of KOYO bearing elastic reduction and on the back of the taper sleeve, so installation should be measured bearing radial clearance, the installation process should be measured on a regular basis to achieve the required clearance, reduce the amount of customs clearance so far, commonly used while installing lock nut installed, it can be used to heating device. D。 The installation of the thrust bearing thrust bearing is generally thoughtful, and with transition shaft with general clearance fit with bearing hole, so it is easier to install bearing, in the spring of axial thrust bearing should be fixed, in order to prevent the rotation axis relative. KOYO bearing installation method under normal circumstances, in most cases axis, so the inner ring and shaft and woo, clearance of bearing outer ring and bearing chamber. Four, bearing installation after check the removal and installation of the KOYO bearing, should be careful. Take care not to damage the bearings and parts, especially interference fit bearing relocation, operation difficulty is big. Therefore, consider in the design phase to facilitate disassembly, before disassembly tool, can according to need to design is also very important. Demolition, according to the drawings of disassembly method, in order to investigate the condition of bearing for demolition and safe operation. 1, demolition and outer remove interference fit, in a few screwdriver screw extrusion preset outer circumference of the case, tighten the screws evenly, and demolition. These usually cover the screw holes on the plug, tapered roller bearing and separated on the shoulder of the housing block bearing set several incisions, use of pad, remove with the press, or click on the demolition. 2, the removal of cylindrical hole demolition and inner ring can pull the latest simple mechanical stress. At this point, we should pay attention to inner strength under tension. Large-scale demolition and adopt the method of hydraulic bearing inner ring. By setting is the oil on the shaft hole so easily. The width of the large bearing is oil method and drawing device and used for demolition work. NU, J type cylindrical roller bearing inner ring remove can make use of the advantage of induction heating. Local heating of in a very short time, so after the drawing method of internal expansion. 3, remove to delete a smaller set of cone hole bearing sleeve bearing, support by fastening piece inner ring, the nut back several files axis, use a hammer remove the liner. Large bearings, hydraulic remove easier to use, the pressure of petrochina, expansion, remove the method of KOYO bearing cone shaft hole. Operation, have bearing the possibility of a sudden, it is best to use the nuts, and block of a file.